deriving...

(I assume you mean GHC.)
Don't look at the compiler, look at the user manual. That describes
what's supported. I have no current plans to withdraw any of the
current support.
Simon
| -----Original Message-----
| From: glasgow-haskell-users-bounces at haskell.org[mailto:glasgow-haskell-users-
|bounces at haskell.org] On Behalf Of MR K P SCHUPKE
| Sent: 13 October 2004 14:06
| To: glasgow-haskell-users at haskell.org| Subject: deriving...
||| What is the situation with deriving?
|| Some instances can be derived automatically for both data/newtype
(built in)?
|| Some instances cen be derived automatically for newtype (any)?
|| You used to be able to define functions useing {|+|} and {|*|} (or
similar)
| that could be derived for both data and newtype.
|| What is the current status, which methods are supported, and will be
| supported going forward.
|| I ask this because looking at the code in the compiler it seems very
| difficault to extend. It would be to specify how to derive new
instances
| once and for all...
|| Keean.
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